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Frame relay has error detection at the ______(a) physical layer(b) data link layer(c) network layer(d) transport layerThis question was posed to me in quiz.Question is from ATM & Frame Relay in division Frame Relay of Computer Network

Answer»

Correct option is (b) data LINK layer

To explain: The Frame Relay header contains an 8-bit Header ERROR CONTROL field (HEC). The HEC field contains an 8-bit CRC which is used for error control.



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